@Death: Only a few minor Christian sects go knocking door-to-door, such as the Jehovah's Witnesses & the Mormons.
Mainline Christians such as Catholics, Presbyterians, Anglicans(Episcopalian), Orthodox, etc do not go there.
However, I suspect that most atheists respect Judaism more than Christianity, because it is still possible to be Jewish while being an atheist, whereas with Christianity you cannot.
I don't like either. But Judaism is the lesser of the two evils. They aren't as crazy and don't come to my door preaching and telling me I will be tortured eternally unless I join them, and then wonder why people don't like them.